validateOnParse = true; @$document->loadHTML(mb_convert_encoding($this->design->html(), 'HTML-ENTITIES', 'UTF-8')); $this->document = $document; $this->xpath = new DOMXPath($document); } public function getSection(string $selector, string $section = null) { $element = $this->document->getElementById($selector); if ($section) { return $element->getAttribute($section); } return $element->nodeValue; } public function getSectionNode(string $selector) { return $this->document->getElementById($selector); } public function updateElementProperties(array $elements) { foreach ($elements as $element) { if (isset($element['tag'])) { $node = $this->document->getElementsByTagName($element['tag'])->item(0); } elseif (!is_null($this->document->getElementById($element['id']))) { $node = $this->document->getElementById($element['id']); } else { continue; } if (isset($element['properties'])) { foreach ($element['properties'] as $property => $value) { $this->updateElementProperty($node, $property, $value); } } if (isset($element['elements'])) { $this->createElementContent($node, $element['elements']); } } } public function updateElementProperty($element, string $attribute, ?string $value) { // We have exception for "hidden" property. // hidden="true" or hidden="false" will both hide the element, // that's why we have to create an exception here for this rule. if ($attribute == 'hidden' && ($value == false || $value == 'false')) { return $element; } $element->setAttribute($attribute, $value); if ($element->getAttribute($attribute) === $value) { return $element; } return $element; } public function createElementContent($element, $children) { foreach ($children as $child) { $contains_html = false; if (isset($child['content'])) { // Commented cause it keeps adding
at the end, if markdown parsing is turned on. // Should update with 'parse_markdown_on_pdfs' setting. // $child['content'] = nl2br($child['content']); } // "/\/[a-z]*>/i" -> checks for HTML-like tags: // => true // => true // => false if (isset($child['content'])) { if (isset($child['is_empty']) && $child['is_empty'] === true) { continue; } $contains_html = preg_match("/\/[a-z]*>/i", $child['content'], $m) != 0; } if ($contains_html) { // If the element contains the HTML, we gonna display it as is. DOMDocument, is going to // encode it for us, preventing any errors on the backend due processing stage. // Later, we decode this using Javascript so it looks like it's normal HTML being injected. // To get all elements that need frontend decoding, we use 'data-ref' property. $_child = $this->document->createElement($child['element'], ''); $_child->setAttribute('data-state', 'encoded-html'); $_child->nodeValue = htmlspecialchars($child['content']); } else { // .. in case string doesn't contain any HTML, we'll just return // raw $content. $_child = $this->document->createElement($child['element'], isset($child['content']) ? htmlspecialchars($child['content']) : ''); } $element->appendChild($_child); if (isset($child['properties'])) { foreach ($child['properties'] as $property => $value) { $this->updateElementProperty($_child, $property, $value); } } if (isset($child['elements'])) { $this->createElementContent($_child, $child['elements']); } } } public function updateVariables(array $variables) { $html = strtr($this->getCompiledHTML(), $variables['labels']); $html = strtr($html, $variables['values']); @$this->document->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8')); $this->document->saveHTML(); } public function updateVariable(string $element, string $variable, string $value) { $element = $this->document->getElementById($element); $original = $element->nodeValue; $element->nodeValue = ''; $replaced = strtr($original, [$variable => $value]); $element->appendChild( $this->document->createTextNode($replaced) ); return $element; } public function processOptions() { if (!isset($this->options['all_pages_header']) || $this->options['all_pages_header'] == false) { return; } if (!isset($this->options['all_pages_footer']) || $this->options['all_pages_footer'] == false) { return; } $this->insertPrintCSS(); $this->wrapIntoTable(); } public function insertPrintCSS() { $css = <<<'EOT' table.page-container { page-break-after: always; min-width: 100%; } thead.page-header { display: table-header-group; } tfoot.page-footer { display: table-footer-group; } EOT; $css_node = $this->document->createTextNode($css); $style = $this->document->getElementsByTagName('style')->item(0); if ($style) { return $style->appendChild($css_node); } $head = $this->document->getElementsByTagName('head')->item(0); if ($head) { $style_node = $this->document->createElement('style', $css); return $head->appendChild($style_node); } return $this; } public function wrapIntoTable() { $markup = <<<'EOT'
EOT; $document = new DOMDocument(); $document->loadHTML($markup); $table = $document->getElementById('page-container'); $body = $this->document->getElementsByTagName('body') ->item(0); $body->appendChild( $this->document->importNode($table, true) ); for ($i = 0; $i < $body->childNodes->length; $i++) { $element = $body->childNodes->item($i); if ($element->nodeType !== 1) { continue; } if ( $element->getAttribute('id') == 'header' || $element->getAttribute('id') == 'footer' || $element->getAttribute('id') === 'page-container' ) { continue; } $clone = $element->cloneNode(true); $element->parentNode->removeChild($element); $this->document->getElementById('repeat-content')->appendChild($clone); } // info($this->data['options']); if ( $header = $this->document->getElementById('header') && isset($this->data['options']['all_pages_header']) && $this->data['options']['all_pages_header'] ) { $header = $this->document->getElementById('header'); $clone = $header->cloneNode(true); $header->parentNode->removeChild($header); $this->document->getElementById('repeat-header')->appendChild($clone); } if ( $footer = $this->document->getElementById('footer') && isset($this->data['options']['all_pages_footer']) && $this->data['options']['all_pages_footer'] ) { $footer = $this->document->getElementById('footer'); $clone = $footer->cloneNode(true); $footer->parentNode->removeChild($footer); $this->document->getElementById('repeat-footer')->appendChild($clone); } } public function getEmptyElements(array &$elements, array $variables) { foreach ($elements as &$element) { if (isset($element['elements'])) { $this->getEmptyChildrens($element['elements'], $variables); } } } public function getEmptyChildrens(array &$children, array $variables) { foreach ($children as $key => &$child) { if (isset($child['content']) && isset($child['show_empty']) && $child['show_empty'] === false) { $value = strtr($child['content'], $variables['values']); if ($value === '' || $value === ' ') { $child['is_empty'] = true; } } if (isset($child['elements'])) { $this->getEmptyChildrens($child['elements'], $variables); } } } }